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| Author | : | Sapper, C. |
| Year of publication | : | 1937 |
| Reference letter | : | a |
| Title | : | Mittelamerika. |
| Volume title | : | Wilckens, O. : (ed.), Handbuch der Regionalen Geologie. |
| Vol/No/Pages/Plates | : | Vol. 29, Lief. 4a: 1-160, 15 figs., 10 pls. |